arc spectrum: meaning, definition, pronunciation and examples
C2Highly technical / scientific
Quick answer
What does “arc spectrum” mean?
The spectrum of light emitted by an electric arc, typically used in physics and chemistry to analyze the elemental composition of a material.
Audio
Pronunciation
Definition
Meaning and Definition
The spectrum of light emitted by an electric arc, typically used in physics and chemistry to analyze the elemental composition of a material.
By extension, it can refer to any visual or graphical representation showing discrete lines or bands characteristic of a substance's emission or absorption when excited, often used metaphorically to describe a distinct, fragmented pattern.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Spelling conventions follow national norms (e.g., 'analyse' vs. 'analyze' in surrounding text).
Connotations
Identical technical meaning in both varieties.
Frequency
Equally rare and specialised in both dialects, confined to spectroscopy, analytical chemistry, astronomy, and physics.
Grammar
How to Use “arc spectrum” in a Sentence
The arc spectrum of [Element/Compound]to analyse/observe/record [an/the] arc spectrum[Element] exhibits/has a distinctive arc spectrumVocabulary
Collocations
Usage
Meaning in Context
Business
Virtually never used.
Academic
Used in physics, chemistry, astronomy, and materials science research papers and textbooks.
Everyday
Never used.
Technical
Core term in analytical spectroscopy for qualitative and quantitative elemental analysis.
Vocabulary
Synonyms of “arc spectrum”
Strong
Neutral
Weak
Vocabulary
Antonyms of “arc spectrum”
Watch out
Common Mistakes When Using “arc spectrum”
- Using 'arch spectrum' (incorrect spelling).
- Using it as a verb (e.g., 'to arc spectrum the sample').
- Confusing it with 'Ark Spectrum' (a potential proper noun).
FAQ
Frequently Asked Questions
No. A rainbow is a continuous spectrum of sunlight. An arc spectrum is typically a line spectrum (discrete coloured lines on a dark background) produced by excited atoms in an electric arc.
No, it is exclusively a noun phrase. The related action would be 'to record an arc spectrum' or 'to analyse by arc spectroscopy'.
Its primary application is in qualitative and quantitative elemental analysis, as each element emits a unique set of spectral lines when vaporised in an electric arc.
It is named after the method of excitation: an electric arc, which provides the high temperature needed to vaporise and excite atoms in a sample, causing them to emit light.
The spectrum of light emitted by an electric arc, typically used in physics and chemistry to analyze the elemental composition of a material.
Arc spectrum is usually highly technical / scientific in register.
Arc spectrum: in British English it is pronounced /ˈɑːk ˌspɛk.trəm/, and in American English it is pronounced /ˈɑːrk ˌspɛk.trəm/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “None”
Learning
Memory Aids
Mnemonic
Think of the ARC of electricity (like lightning) creating a rainbow-like SPECTRUM that acts as a fingerprint for elements.
Conceptual Metaphor
A FINGERPRINT OR SIGNATURE (for identifying elements); A RAINBOW WITH GAPS (representing discrete emission lines).
Practice
Quiz
In which field is the term 'arc spectrum' primarily used?